CN102850031A - Corrosion-resistant polymer waterproof mortar - Google Patents

Corrosion-resistant polymer waterproof mortar Download PDF

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Publication number
CN102850031A
CN102850031A CN 201210353170 CN201210353170A CN102850031A CN 102850031 A CN102850031 A CN 102850031A CN 201210353170 CN201210353170 CN 201210353170 CN 201210353170 A CN201210353170 A CN 201210353170A CN 102850031 A CN102850031 A CN 102850031A
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China
Prior art keywords
parts
cellulose
mortar
fibre
latex powder
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Withdrawn
Application number
CN 201210353170
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Chinese (zh)
Inventor
肖伟荣
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WUJIANG TIANYUAN PLASTIC CO Ltd
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WUJIANG TIANYUAN PLASTIC CO Ltd
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Priority to CN 201210353170 priority Critical patent/CN102850031A/en
Publication of CN102850031A publication Critical patent/CN102850031A/en
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Abstract

The invention provides a corrosion-resistant polymer waterproof mortar, which comprises the following components by weight: 40-50 parts of portland cement, 2-3 parts of polymethyl acrylate latex powder, 2-3 parts of ethylene-vinyl acetate latex powder, 1-2 parts of vinyl chloride-vinylidene chloride copolymerized latex powder, 1-2 parts of polyacrylate latex powder, 3-5 parts of polypropylene fibers, 3-5 parts of cellulose ether, 3-7 parts of inorganic fibers, 6-12 parts of plant fibers, 3-5 parts of cellulose sulfate, 2-4 parts of cellulose phosphate, 1-2 parts of phenyl salicylate, 1-3 parts of polyimide particles, 5-8 parts of quartz sand, 10-15 parts of gypsum, 5-9 parts of fly ash, 4-7 parts of bentonite, 3-6 parts of molybdenum trioxide, 2-5 parts of silicon oxide, 1-2 parts of citric acid, 5-8 parts of calcium nitrate, 5-8 parts of diatomite, 2-8 parts of polyvinyl alcohol, 3-6 parts of dried alum, 1-2 parts of a surfactant, and 20-30 parts of water.

Description

A kind of corrosion resistant waterproof polymer mortar
Technical field
The invention provides waterproof mortar, particularly a kind of corrosion resistant waterproof polymer mortar belongs to building material technical field.
Background technology
Various novel wall materials (such as concrete hollow block, air-entrained concrete building block, ceramsite concrete hollow block and structural clay tile etc.) have been widely used; novel wall material can make the goods and materials cycle applications, reduce the purpose that physical environment is destroyed.But the shortcomings such as novel wall material ubiquity porosity is large, water-absorbent is strong, impermeability is poor cause exterior wall that the phenomenon of percolating water easily occurs, and therefore must take effectively to prevent the measure of skin seepage when using novel wall material.
In addition, buildings exposes the invasion and attack that are subject to various mal-conditions in physical environment to the open air, floods, snow disaster, acid-alkali salt erosion etc., cause building structural materials damage and so that the buildings reliability reduce.And then surface cracking, the breakage that can introduce buildings, and then may cause infiltration, the phenomenon such as permeable, have influence on safety of building.
Normal concrete/mortar is low because of tensile pressure ratio, and is dry-shrinkage deformed large, impermeability, splitting resistance, corrosion-resistant, and density is large, and its use range is very restricted.Along with industrial expansion, Steel Concrete, self-stressing concrete and fibrous concrete have appearred.But in these modifications, the performance of consolidating material cement does not change, and has therefore limited the raising of the performance of concrete/mortar yet.
For above problem, ordinary mortar more and more can not be satisfied the demand, just have a series of specific functions such as cracking resistance, high bonding, water proof anti-seepage and ornamental mortar arise.Along with going deep into of research, the excellent properties of polymer-modified cement mortar is found more and more, and it has higher folding strength, tensile strength, extension ability, watertightness, and is also larger with the cohesive force of reinforcing bar.Therefore, polymer-modified cement mortar is widely used in patching material and the ground of various antiseptic projects, concrete structures.
The polymkeric substance that is used at present cement concrete modifying mainly contains water-soluble polymers, polymer powder and polymer emulsion etc.The polymer emulsion preparation is easier, moderate cost, and emulsion directly adds when cement mortar, concrete formation, and easy construction is effective, and therefore, the method that is used at present modified cement is generally polymer emulsion modified.
But it is bad that conventional Polymer-Modified Mortar still exists corrosion resistance nature, is in for a long time under the severe environment, and the water resistance of external surface of buildings still can be affected.In addition, these mortars also have to be strengthened on physical strength.Ultraviolet ray in the sunlight has a great impact the aging of polymer materials.
Summary of the invention
For above commentary to prior art, technical problem to be solved by this invention is: the corrosion resistance nature of existing waterproof polymer mortar is bad, the not high problem of intensity after construction is finished, the shortcoming that life-time service easily wears out under ultraviolet destruction.Adopt following technical scheme:
A kind of corrosion resistant waterproof polymer mortar comprises following component by weight: 40~50 parts of silicate cements, 2~3 parts of polymethyl acrylate latex powder, 2~3 parts of ethylene-vinyl acetate latex powder, 1~2 part in vinylchlorid-vinylidene chloride emulsion copolymer powder, 1~2 part of polyacrylic ester latex powder, 3~5 parts of polypropylene fibres, 3~5 parts of ether of cellulose, 3~7 parts of inorganic fibres, 6~12 parts on vegetable fibre, 3~5 parts of cellulose sulfuric acid esters, 2~4 parts of Mierocrystalline cellulose phosphoric acid ester, 1~2 part of salicylic acid phenyl ester, 1~3 part of polyimide particles, 5~8 parts of quartz sands, 10~15 parts in gypsum, 5~9 parts in flyash, 4~7 parts of wilkinites, 3~6 parts of molybdic oxides, 2~5 parts of silicon oxide, 1~2 part of citric acid, 5~8 parts in nitrocalcite, 5~8 parts in diatomite, 2~8 parts of polyvinyl alcohol, 3~6 parts of alumens, 1~2 part in tensio-active agent, 20~30 parts in water.
Described inorganic fibre is one or more mixtures in glass fibre, boron fibre, ceramic fiber, aluminum silicate fiber, silicon carbide fiber, silicon oxide fibre, sapphire whisker, carbon fiber, mullite fiber preferably.
Described vegetable fibre is one or more mixtures in maize straw, wheat stalk or wood chip preferably.
The preferred length of described vegetable fibre is less than 0.3cm.
The preferred length of described polypropylene fibre is in 1~20mm scope.
Described ether of cellulose is one or more mixtures in methyl cellulose ether, cellulose ether, hydroxyethylmethyl-cellulose ether, hydroxypropyl methyl cellulose ether preferably.
The preparation method is:
S1: silicate cement, polymethyl acrylate latex powder, ethylene-vinyl acetate latex powder, vinylchlorid-vinylidene chloride emulsion copolymer powder, polyacrylic ester latex powder are mixed, as mixture A;
S2: polypropylene fibre, ether of cellulose, inorganic fibre, vegetable fibre, cellulose sulfuric acid ester, Mierocrystalline cellulose phosphoric acid ester, salicylic acid phenyl ester, polyimide particles are mixed, as mixture B;
S3: mixture A, mixture B, quartz sand, gypsum, flyash, wilkinite, molybdic oxide, silicon oxide, citric acid, nitrocalcite, diatomite, polyvinyl alcohol, alumen, tensio-active agent are mixed, as mortar powder;
S4: mortar powder and water are stirred, get waterproof mortar.
Above-mentioned polymethyl acrylate latex powder, ethylene-vinyl acetate latex powder, vinylchlorid-vinylidene chloride emulsion copolymer powder, polyacrylic ester latex powder evenly spread in the sand-cement slurry of newly mixing, diffusion latex particle by polymer molecule forms water-fast continuous film in mortar, thereby can improve to the flexible adhesion at interface with to the modification of mortar itself.It can improve the workability of mortar significantly, improves the cohesive force of mortar and different basic units, the flexibility of raising mortar, wear resistance etc.Polymer emulsion can form tough and tensile, fine and close film after condensing, be filled between the cement granules, forms external phase with hydrolysis product of cement and fills the space, has cut off the passage that contacts with the external world.
Tensio-active agent can play good dissemination to mortar, reduces water consumption, thereby reduces the pore of cement, improves density and the impermeabilisation ability of mortar.
Inorganic fibre can not be dissolved in water and solvent, can not be dissolved in weak acid and the weak caustic solution yet.Be applied in the mortar, under static state can be overlapped to form 3-D solid structure, increase mortar thixotropy and anti-hammer, improve application property.The adding of fiber is equivalent to mix the enormous amount fine ribs in mortar, these fibers suppress the process of mortar cracking, reduces crackle and just can improve the mortar water-repellancy.It can also play the deformation stress that reduces the mortar hardening body, alleviates the generation of Mortar shrinkage cracking.Be accompanied by sponge, can improve the heat-insulating property of waterproof mortar.
The salicylic acid phenyl ester can absorb ultraviolet ray effectively, prevents aging after the mortar construction.The adding of molybdic oxide can improve the Corrosion Protection of cement.
Technique effect
Waterproof mortar provided by the invention has excellent corrosion resistance nature, and can improve the intensity of cement.Ultimate compression strength can reach more than the 75MPa, and folding strength can reach more than the 16.0MPa, and cohesive strength can reach above 1.50MPa, and impervious pressure can reach more than the 1.90MPa.
Embodiment
Prepare each component by the weight ratio shown in the table 1.
The weight proportion of table 1 embodiment 1~embodiment 3
Among the above embodiment, inorganic fibre adopts aluminum silicate fiber; Vegetable fibre adopts maize straw, and its length is less than 0.3cm; The length of polypropylene fibre is in 1~20mm scope; Ether of cellulose adopts hydroxypropyl methyl cellulose ether.
The preparation method is:
S1: silicate cement, polymethyl acrylate latex powder, ethylene-vinyl acetate latex powder, vinylchlorid-vinylidene chloride emulsion copolymer powder, polyacrylic ester latex powder are mixed, as mixture A;
S2: polypropylene fibre, ether of cellulose, inorganic fibre, vegetable fibre, cellulose sulfuric acid ester, Mierocrystalline cellulose phosphoric acid ester, salicylic acid phenyl ester, polyimide particles are mixed, as mixture B;
S3: mixture A, mixture B, quartz sand, gypsum, flyash, wilkinite, molybdic oxide, silicon oxide, citric acid, nitrocalcite, diatomite, polyvinyl alcohol, alumen, tensio-active agent are mixed,
As mortar powder;
S4: mortar powder and water are stirred, get waterproof mortar.
Performance test
Carry out impervious pressure, the cohesive strength of waterproof mortar with reference to JGJ/T70-2009 " building mortar basic performance tests method ".Carry out ultimate compression strength and folding strength test according to GB/T17671-1999 " Test method for strength of hydraulic cement mortar (ISO method) ".
Before the test mortar specimen strength trial, with test block be placed on the normal curing condition (temperature: 20 ± 2 ℃, humidity: 〉=90%) carry out behind the lower maintenance 28d.
The performance test data of table 2 embodiment 1~embodiment 3 and reference examples
Embodiment 1 Embodiment 2 Embodiment 3 Reference examples
Ultimate compression strength (MPa) 75.6 76.1 76.0 66.1
Folding strength (MPa) 16.6 16.8 16.6 10.5
Cohesive strength (MPa) 1.57 1.75 1.65 1.13
Impervious pressure (MPa) 1.97 1.99 2.04 1.54
As can be seen from the table, the ultimate compression strength of waterproof mortar provided by the invention can reach more than the 75MPa, and folding strength can reach more than the 16.0MPa, and cohesive strength can reach above 1.50MPa, and impervious pressure can reach more than the 1.90MPa.

Claims (6)

1. a corrosion resistant waterproof polymer mortar comprises following component by weight: 40~50 parts of silicate cements, 2~3 parts of polymethyl acrylate latex powder, 2~3 parts of ethylene-vinyl acetate latex powder, 1~2 part in vinylchlorid-vinylidene chloride emulsion copolymer powder, 1~2 part of polyacrylic ester latex powder, 3~5 parts of polypropylene fibres, 3~5 parts of ether of cellulose, 3~7 parts of inorganic fibres, 6~12 parts on vegetable fibre, 3~5 parts of cellulose sulfuric acid esters, 2~4 parts of Mierocrystalline cellulose phosphoric acid ester, 1~2 part of salicylic acid phenyl ester, 1~3 part of polyimide particles, 5~8 parts of quartz sands, 10~15 parts in gypsum, 5~9 parts in flyash, 4~7 parts of wilkinites, 3~6 parts of molybdic oxides, 2~5 parts of silicon oxide, 1~2 part of citric acid, 5~8 parts in nitrocalcite, 5~8 parts in diatomite, 2~8 parts of polyvinyl alcohol, 3~6 parts of alumens, 1~2 part in tensio-active agent, 20~30 parts in water; Its preparation method is:
S1: silicate cement, polymethyl acrylate latex powder, ethylene-vinyl acetate latex powder, vinylchlorid-vinylidene chloride emulsion copolymer powder, polyacrylic ester latex powder are mixed, as mixture A;
S2: polypropylene fibre, ether of cellulose, inorganic fibre, vegetable fibre, cellulose sulfuric acid ester, Mierocrystalline cellulose phosphoric acid ester, salicylic acid phenyl ester, polyimide particles are mixed, as mixture B;
S3: mixture A, mixture B, quartz sand, gypsum, flyash, wilkinite, molybdic oxide, silicon oxide, citric acid, nitrocalcite, diatomite, polyvinyl alcohol, alumen, tensio-active agent are mixed, as mortar powder;
S4: mortar powder and water are stirred, get waterproof mortar.
2. corrosion resistant waterproof polymer mortar according to claim 1, it is characterized in that: described inorganic fibre is one or more mixtures in glass fibre, boron fibre, ceramic fiber, aluminum silicate fiber, silicon carbide fiber, silicon oxide fibre, sapphire whisker, carbon fiber, mullite fiber preferably.
3. corrosion resistant waterproof polymer mortar according to claim 1, it is characterized in that: described vegetable fibre is one or more mixtures in maize straw, wheat stalk or the wood chip.
4. corrosion resistant waterproof polymer mortar according to claim 1, it is characterized in that: the length of described vegetable fibre is less than 0.3cm.
5. corrosion resistant waterproof polymer mortar according to claim 1, it is characterized in that: the length of described polypropylene fibre is in 1~20mm scope.
6. corrosion resistant waterproof polymer mortar according to claim 1, it is characterized in that: described ether of cellulose is one or more mixtures in methyl cellulose ether, cellulose ether, hydroxyethylmethyl-cellulose ether, the hydroxypropyl methyl cellulose ether.
CN 201210353170 2012-09-20 2012-09-20 Corrosion-resistant polymer waterproof mortar Withdrawn CN102850031A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482923A (en) * 2012-06-11 2014-01-01 弋小兵 Preparation method of composite mortar
CN104086141A (en) * 2014-07-21 2014-10-08 俞权锋 Architectural dry-mixing plastering mortar and preparation method thereof
CN104387003A (en) * 2014-10-29 2015-03-04 尤明 Interface waterproofing mortar and preparation method thereof
CN104478384A (en) * 2014-11-24 2015-04-01 柳州立洁科技有限公司 Aluminum-free autoclaved aerated building block
CN104529294A (en) * 2014-12-20 2015-04-22 魏超产 Waterproof caulking mortar and preparation method thereof
CN105110682A (en) * 2015-07-30 2015-12-02 铜陵海源超微粉体有限公司 Polymer-cement water-resisting admixture
CN105384411A (en) * 2015-12-11 2016-03-09 徐琪 Preparation method of functional mortar capable of releasing negative ions
CN105712680A (en) * 2016-02-03 2016-06-29 陈翔 Composite fiber concrete
CN107640927A (en) * 2017-11-22 2018-01-30 马鞍山松鹤信息科技有限公司 A kind of waterproof bridge floor material and its preparation technology
CN108409257A (en) * 2018-05-29 2018-08-17 吴远怀 A kind of highly resistance permeability cement-base composite material and preparation method thereof
CN108484022A (en) * 2018-04-25 2018-09-04 扬州市职业大学 A kind of fiber reinforcement regeneration concrete and preparation method thereof
CN108485333A (en) * 2018-05-03 2018-09-04 北京浦立特科技有限公司 Cement gel slurries and preparation method thereof with rust anticorrosive construction
CN108947414A (en) * 2018-09-26 2018-12-07 济南大学 A kind of high compact silicate cement cement mortar
CN110627470A (en) * 2019-11-01 2019-12-31 新化县天马建筑新材料科技有限公司 Double-network reinforced composite quick-drying gel cement material and preparation method thereof
CN110845202A (en) * 2019-12-20 2020-02-28 石旭艳 High-strength wear-resistant mortar and preparation method thereof
US10584063B2 (en) 2014-11-21 2020-03-10 Saint-Gobain Placo Fire resistant calcium sulphate-based products
US10662113B2 (en) 2014-11-21 2020-05-26 Saint-Gobain Placo Fire-resistant calcium sulphate-based products

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482923A (en) * 2012-06-11 2014-01-01 弋小兵 Preparation method of composite mortar
CN103482923B (en) * 2012-06-11 2015-09-02 弋小兵 A kind of preparation method of composite mortar
CN104086141B (en) * 2014-07-21 2016-01-20 温州创新砂浆科技股份有限公司 A kind of building dry-mixed plastering mortar and preparation method thereof
CN104086141A (en) * 2014-07-21 2014-10-08 俞权锋 Architectural dry-mixing plastering mortar and preparation method thereof
CN104387003A (en) * 2014-10-29 2015-03-04 尤明 Interface waterproofing mortar and preparation method thereof
US10584063B2 (en) 2014-11-21 2020-03-10 Saint-Gobain Placo Fire resistant calcium sulphate-based products
US10662113B2 (en) 2014-11-21 2020-05-26 Saint-Gobain Placo Fire-resistant calcium sulphate-based products
CN104478384A (en) * 2014-11-24 2015-04-01 柳州立洁科技有限公司 Aluminum-free autoclaved aerated building block
CN104529294A (en) * 2014-12-20 2015-04-22 魏超产 Waterproof caulking mortar and preparation method thereof
CN105110682A (en) * 2015-07-30 2015-12-02 铜陵海源超微粉体有限公司 Polymer-cement water-resisting admixture
CN105384411A (en) * 2015-12-11 2016-03-09 徐琪 Preparation method of functional mortar capable of releasing negative ions
CN105712680A (en) * 2016-02-03 2016-06-29 陈翔 Composite fiber concrete
CN105712680B (en) * 2016-02-03 2018-05-01 山东中粉建材科技有限公司 A kind of fiber composite concrete
CN107640927A (en) * 2017-11-22 2018-01-30 马鞍山松鹤信息科技有限公司 A kind of waterproof bridge floor material and its preparation technology
CN108484022A (en) * 2018-04-25 2018-09-04 扬州市职业大学 A kind of fiber reinforcement regeneration concrete and preparation method thereof
CN108485333A (en) * 2018-05-03 2018-09-04 北京浦立特科技有限公司 Cement gel slurries and preparation method thereof with rust anticorrosive construction
CN108409257A (en) * 2018-05-29 2018-08-17 吴远怀 A kind of highly resistance permeability cement-base composite material and preparation method thereof
CN108947414A (en) * 2018-09-26 2018-12-07 济南大学 A kind of high compact silicate cement cement mortar
CN110627470A (en) * 2019-11-01 2019-12-31 新化县天马建筑新材料科技有限公司 Double-network reinforced composite quick-drying gel cement material and preparation method thereof
CN110627470B (en) * 2019-11-01 2020-05-05 新化县天马建筑新材料科技有限公司 Double-network reinforced composite quick-drying gel cement material and preparation method thereof
CN110845202A (en) * 2019-12-20 2020-02-28 石旭艳 High-strength wear-resistant mortar and preparation method thereof

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Application publication date: 20130102